Upper and lower bounds for three-dimensional undrained stability of shallow tunnels

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8 Citations (Scopus)

Abstract

This paper deals with the determination of upper and lower bounds for the three-dimensional undrained stability of shallow tunnels. The tunnel is circular and a distance between its face and its lining is considered. The soil shear strength is modeled using the Tresca criterion. Results of the upper and lower bounds of the stability number are presented, for several geometrical and resistance configurations and their comparison with previous results is made, showing the clear improvement obtained. Finally, equations approaching the stability number are proposed.

Original languageEnglish
Article number100491
JournalTransportation Geotechnics
Volume27
DOIs
Publication statusPublished - Mar 2021

Keywords

  • Alternating direction method of multipliers
  • Finite elements
  • Limit analysis
  • Tunnel face undrained stability

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